Do a good job of machine maintenance in order to make the machine processing accuracy to maintain the best state, to extend the use of machine life, that precision mechanical parts processing equipment should be how to maintain it?
After the machine is started, it is prohibited to maintain the machine. Maintenance process, the circuit breaker should be disconnected.
Machining precision maintenance.
1, after the machine is turned on, it must be warmed up for about 10 minutes before processing. Machines not used for a long time should extend the preheating time.
2、Check whether the oil circuit is smooth
3, before shutting down the machine will be the table, saddle placed in the central position of the machine (move the three axis travel to the middle of each axis travel).
4、Keep the machine dry and clean.
Caution: After the machine is started, maintenance of the machine is prohibited. During maintenance, the circuit breaker should be disconnected.
First, daily maintenance (do professional CNC machining master must do)
1, check the height of the lubricant level to ensure that the machine tool lubrication. It is recommended to use T68 # guide oil.
2, check whether the coolant tank coolant is sufficient, not enough to add in time.
3, check the height of the pneumatic triplex oil level, about 2/3 of the entire oil tube height can be. Every day the pneumatic triplex oil filter tank water gas by the drainage switch to discharge.
4、Check the air pressure, relax the adjusting knob, adjust the pressure according to the principle of right rotation to increase pressure and left rotation to decrease pressure, generally set to 5-7KG/CM2. 5KG/CM2 is usually set by the pressure switch, and the alarm will appear when it is lower than 5KG/CM2. When the pressure rises, the alarm message disappears.
5、Check whether the air blowing in the spindle inner taper hole is normal, wipe the spindle inner taper hole with clean cotton cloth and spray light oil.
6、Clean the tool magazine tool arm and tool, especially the tool claw.
7、Clean the exposed limit switch and the touch block.
8、Clean the cutting and oil stains on the table, inside the machine tool and the three axes telescopic guard.
9、Check all signal lights and warning lights of different alarms are normal.
10, check whether the oil pressure unit tube leakage.
11, the machine tool daily work after the completion of cleaning and cleaning work.
12, maintain the machine around the environment neat and tidy.
Second, weekly maintenance
1、Clean the air filter of the heat exchanger, cooling pump, lube oil pump filter.
2、Check whether the tool pull bolt is loose and the tool handle is clean.
3、Check whether the three-axis mechanical origin is offset.
4、Check whether the tool changer arm action or tool changer tool rotation is smooth.
5、If there is oil cooler, check the oil cooler oil, if it is lower than the scale line, please refill the oil cooler oil in time. Recommend to use 10# spindle oil.
6、Check the setting temperature of oil cooler, it is recommended to set it between 26-28 degrees.
Third、Monthly maintenance
1、Check the lubrication of X, Y and Z axes track, the track surface must be well lubricated.
2、Check and clean the limit switch and touch block.
3、Check whether the oil cup oil of the beater cylinder is enough, and add it in time.
4、Check whether the indication plate and warning nameplate on the machine are clear and exist.
Four, half-year maintenance
1、Disassemble the three axes chip guard, clean the three axes oil pipe joint, ball lead screw, three axes limit switch, and test whether it is normal. Check whether the effect of hard rail scraping brush piece of each axis is good.
2、Check whether the servo motor and head of each axis are running normally and there is no abnormal sound.
3、Replace the oil pressure unit oil and tool reducer mechanism oil.
4、Test the clearance of each axis, if necessary, adjust the compensation amount.
5、Clean the dust in the electric box (make sure the machine tool is in the off state).
6、Completely check whether the contacts, joints, sockets and switches are normal.
7, check and adjust the mechanical level.
V. Annual maintenance
1, check all the keys are sensitive and normal.
2、Clean the cutting water tank and replace the cutting fluid.
3、Check the vertical accuracy of each axis and decide whether it needs to be adjusted.
Six, routine maintenance and repair
Note: The maintenance and repair of the equipment should be carried out by professional engineers.
1、 Grounding protection system should have intact continuity to ensure personal safety.
2、 Periodic inspection of circuit breakers, contactors, single-phase or three-phase interrupters and other components. Such as whether the wiring is loose, whether the noise is too loud, find out the cause and eliminate hidden problems.
3、 Ensure the normal operation of the radiator fan in the electric cabinet, otherwise it may lead to damage of the elementary parts.
4、Fuse blows, air switch trips frequently, find out the cause and eliminate it in time.
5、Servo drive battery replacement
Absolute system data rely on the servo drive battery to maintain, when the battery voltage is too low (warning 9F), the drive battery needs to be replaced, please order the same type of battery unit as soon as possible, and keep the drive power on. Please turn on the power of the drive unit 30 minutes before replacing the battery, and finish replacing the battery within 1 hour.
Seven, the battery replacement steps
1、Confirm that the input power has been cut off and the power of the drive unit being replaced is OFF.
2, pull out the battery plug connected to the battery socket of the drive unit.
3, press the side of the battery with your fingertips, push the battery horizontally and then remove.
4、The plug of the new battery is connected to the battery socket of the drive unit.
5、Install the battery into the drive unit.